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Strange IP/Azure/softether.net conectivity...
Posted: Thu Dec 12, 2024 6:11 pm
by mendoza_lt
I have set up softethervpn in router. It is behind another "Main" router. I prefer to use IP address (public/private ip combination) to connect to it, because neither vpnazure nor softether.net is guaranteed, and no one can take IP addresses from me. But... If i set WAN IP address on the VPN router to DHCP - i can connect to it using public/private IP combination. And if i set it manually, same settings (except ip, of course), - i can not connect to the router. Only vpnazure works... what could be the reason?
Re: Strange IP/Azure/softether.net conectivity...
Posted: Fri Dec 13, 2024 12:59 am
by solo
mendoza_lt wrote: ↑Thu Dec 12, 2024 6:11 pm
I have set up softethervpn in router.
On OpenWrt firmware? Post as code when on DHCP...
Code: Select all
ifconfig
ip addr
route -n
ip route
traceroute 1.1.1.1
...and again on manual IP.
Re: Strange IP/Azure/softether.net conectivity...
Posted: Fri Dec 13, 2024 5:46 am
by mendoza_lt
That's OpenWrt based Teltonika RUTX09, Here are the logs:
eth1.50 is a management Vlan for openwisp...
Static:
Code: Select all
root@RUTX09:~# ifconfig
eth1 Link encap:Ethernet HWaddr 20:97:27:07:7F:57
inet addr:192.168.88.8 Bcast:192.168.88.255 Mask:255.255.255.0
inet6 addr: fe80::2297:27ff:fe07:7f57/64 Scope:Link
UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1
RX packets:1015929 errors:0 dropped:120 overruns:0 frame:0
TX packets:68131 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:213650449 (203.7 MiB) TX bytes:5511964 (5.2 MiB)
eth1.50 Link encap:Ethernet HWaddr 20:97:27:07:7F:57
inet addr:192.168.50.2 Bcast:192.168.50.255 Mask:255.255.255.0
inet6 addr: fe80::2297:27ff:fe07:7f57/64 Scope:Link
UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1
RX packets:25720 errors:0 dropped:0 overruns:0 frame:0
TX packets:14623 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1649063 (1.5 MiB) TX bytes:928338 (906.5 KiB)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:777166 errors:0 dropped:0 overruns:0 frame:0
TX packets:777166 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:65934527 (62.8 MiB) TX bytes:65934527 (62.8 MiB)
root@RUTX09:~# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,PROMISC> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether 20:97:27:07:7f:56 brd ff:ff:ff:ff:ff:ff
3: eth1: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
link/ether 20:97:27:07:7f:57 brd ff:ff:ff:ff:ff:ff
inet 192.168.88.8/24 brd 192.168.88.255 scope global eth1
valid_lft forever preferred_lft forever
inet6 fe80::2297:27ff:fe07:7f57/64 scope link
valid_lft forever preferred_lft forever
4: ip6tnl0@NONE: <NOARP> mtu 1452 qdisc noop state DOWN group default qlen 1000
link/tunnel6 :: brd :: permaddr 6eae:a6da:7cb8::
5: sit0@NONE: <NOARP> mtu 1480 qdisc noop state DOWN group default qlen 1000
link/sit 0.0.0.0 brd 0.0.0.0
6: gre0@NONE: <NOARP> mtu 1476 qdisc noop state DOWN group default qlen 1000
link/gre 0.0.0.0 brd 0.0.0.0
7: gretap0@NONE: <BROADCAST,MULTICAST> mtu 1462 qdisc noop state DOWN group default qlen 1000
link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
8: erspan0@NONE: <BROADCAST,MULTICAST,PROMISC> mtu 1450 qdisc noop state DOWN group default qlen 1000
link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
9: ip6gre0@NONE: <NOARP> mtu 1448 qdisc noop state DOWN group default qlen 1000
link/gre6 :: brd :: permaddr 8ad8:3618:4f90::
10: miireg: <> mtu 0 qdisc noop state DOWN group default qlen 1000
link/netrom
11: wwan0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether 82:66:c6:2b:bb:1c brd ff:ff:ff:ff:ff:ff
12: eth1.50@eth1: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether 20:97:27:07:7f:57 brd ff:ff:ff:ff:ff:ff
inet 192.168.50.2/24 brd 192.168.50.255 scope global eth1.50
valid_lft forever preferred_lft forever
inet6 fe80::2297:27ff:fe07:7f57/64 scope link
valid_lft forever preferred_lft forever
root@RUTX09:~# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.88.1 0.0.0.0 UG 1 0 0 eth1
192.168.50.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1.50
192.168.88.0 0.0.0.0 255.255.255.0 U 1 0 0 eth1
root@RUTX09:~# ip route
default via 192.168.88.1 dev eth1 proto static metric 1
192.168.50.0/24 dev eth1.50 proto kernel scope link src 192.168.50.2
192.168.88.0/24 dev eth1 proto static scope link src 192.168.88.8 metric 1
root@RUTX09:~# traceroute 1.1.1.1
traceroute to 1.1.1.1 (1.1.1.1), 30 hops max, 46 byte packets
1 192.168.88.1 (192.168.88.1) 0.028 ms 0.030 ms 0.026 ms
2 81.191.29.1 (81.191.29.1) 1.711 ms 1.353 ms 1.559 ms
3 ae25.cr2.fn3.as2116.net (195.0.242.230) 0.909 ms 0.894 ms 0.797 ms
4 ae12.br2.fn3.as2116.net (193.75.2.51) 0.452 ms 0.440 ms 0.445 ms
5 162.158.220.2 (162.158.220.2) 2.550 ms 0.921 ms 1.059 ms
6 one.one.one.one (1.1.1.1) 0.402 ms 0.650 ms 0.662 ms
DHCP:
Code: Select all
ifconfig
eth1 Link encap:Ethernet HWaddr 20:97:27:07:7F:57
inet addr:192.168.88.130 Bcast:192.168.88.255 Mask:255.255.255.0
inet6 addr: fe80::2297:27ff:fe07:7f57/64 Scope:Link
UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1
RX packets:1033436 errors:0 dropped:120 overruns:0 frame:0
TX packets:69570 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:216485429 (206.4 MiB) TX bytes:6286711 (5.9 MiB)
eth1.50 Link encap:Ethernet HWaddr 20:97:27:07:7F:57
inet addr:192.168.50.2 Bcast:192.168.50.255 Mask:255.255.255.0
inet6 addr: fe80::2297:27ff:fe07:7f57/64 Scope:Link
UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1
RX packets:25993 errors:0 dropped:0 overruns:0 frame:0
TX packets:14779 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1666379 (1.5 MiB) TX bytes:938322 (916.3 KiB)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:785511 errors:0 dropped:0 overruns:0 frame:0
TX packets:785511 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:66701471 (63.6 MiB) TX bytes:66701471 (63.6 MiB)
root@RUTX09:~# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,PROMISC> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether 20:97:27:07:7f:56 brd ff:ff:ff:ff:ff:ff
3: eth1: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
link/ether 20:97:27:07:7f:57 brd ff:ff:ff:ff:ff:ff
inet 192.168.88.130/24 brd 192.168.88.255 scope global eth1
valid_lft forever preferred_lft forever
inet6 fe80::2297:27ff:fe07:7f57/64 scope link
valid_lft forever preferred_lft forever
4: ip6tnl0@NONE: <NOARP> mtu 1452 qdisc noop state DOWN group default qlen 1000
link/tunnel6 :: brd :: permaddr 6eae:a6da:7cb8::
5: sit0@NONE: <NOARP> mtu 1480 qdisc noop state DOWN group default qlen 1000
link/sit 0.0.0.0 brd 0.0.0.0
6: gre0@NONE: <NOARP> mtu 1476 qdisc noop state DOWN group default qlen 1000
link/gre 0.0.0.0 brd 0.0.0.0
7: gretap0@NONE: <BROADCAST,MULTICAST> mtu 1462 qdisc noop state DOWN group default qlen 1000
link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
8: erspan0@NONE: <BROADCAST,MULTICAST,PROMISC> mtu 1450 qdisc noop state DOWN group default qlen 1000
link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
9: ip6gre0@NONE: <NOARP> mtu 1448 qdisc noop state DOWN group default qlen 1000
link/gre6 :: brd :: permaddr 8ad8:3618:4f90::
10: miireg: <> mtu 0 qdisc noop state DOWN group default qlen 1000
link/netrom
11: wwan0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether 82:66:c6:2b:bb:1c brd ff:ff:ff:ff:ff:ff
12: eth1.50@eth1: <BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether 20:97:27:07:7f:57 brd ff:ff:ff:ff:ff:ff
inet 192.168.50.2/24 brd 192.168.50.255 scope global eth1.50
valid_lft forever preferred_lft forever
inet6 fe80::2297:27ff:fe07:7f57/64 scope link
valid_lft forever preferred_lft forever
root@RUTX09:~# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.88.1 0.0.0.0 UG 1 0 0 eth1
192.168.50.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1.50
192.168.88.0 0.0.0.0 255.255.255.0 U 1 0 0 eth1
root@RUTX09:~# ip route
default via 192.168.88.1 dev eth1 proto static src 192.168.88.130 metric 1
192.168.50.0/24 dev eth1.50 proto kernel scope link src 192.168.50.2
192.168.88.0/24 dev eth1 proto static scope link src 192.168.88.130 metric 1
root@RUTX09:~# traceroute 1.1.1.1
traceroute to 1.1.1.1 (1.1.1.1), 30 hops max, 46 byte packets
1 192.168.88.1 (192.168.88.1) 0.302 ms 0.258 ms 0.228 ms
2 81.191.29.1 (81.191.29.1) 7.306 ms 11.713 ms 4.611 ms
3 ae25.cr2.fn3.as2116.net (195.0.242.230) 0.880 ms 0.954 ms 1.000 ms
4 ae12.br2.fn3.as2116.net (193.75.2.51) 0.476 ms 0.523 ms 0.496 ms
5 162.158.220.2 (162.158.220.2) 47.465 ms 1.283 ms 1.224 ms
6 one.one.one.one (1.1.1.1) 0.608 ms 0.619 ms 0.600 ms
root@RUTX09:~#
Re: Strange IP/Azure/softether.net conectivity...
Posted: Fri Dec 13, 2024 5:56 am
by solo
On your "Main" router ensure that the VPN port is forwarded only to 192.168.88.8 and remove any other erroneous entries.
Re: Strange IP/Azure/softether.net conectivity...
Posted: Fri Dec 13, 2024 4:49 pm
by mendoza_lt
Yeah, i thought about "main" router, when i analyzed logs, but the thing is that i do not have access to it, that is one of the reasons Softether was used. I guess i will have to live with like it is now...